συσκιάζω

1. to shade quite over, throw a shade over, shade closely or thickly , (Hesiod); γένυν ς., i. e.to get a beard, (Euripides): metaphorically, συσκηνῶσαι τὰς ἁμαρτίας (Demosthenes Orator)
2. intransitive to be thick-shaded , (Euripides) (ML)